What is the difference in reported cases of paralytic polio between Iran, Islamic Republic of and Sao Tome and Principe?

0 cases, with Iran, Islamic Republic of ahead.

How many years of comparable data are there for Iran, Islamic Republic of and Sao Tome and Principe?

44 years are reported by both, from 1980 to 2023.

Where does this data come from?

World Health Organization (2019); World Health Organization (2024) – processed by Our World in Data, published as Reported cases of paralytic polio. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Iran, Islamic Republic of vs Sao Tome and Principe: Reported cases of paralytic polio

Iran, Islamic Republic of

0 cases

in 2023

Sao Tome and Principe

0 cases

in 2023

Iran, Islamic Republic of rank

26th

Sao Tome and Principe rank

26th

Reported cases of paralytic polio over time

Iran, Islamic Republic of
Sao Tome and Principe

How they compare

Iran, Islamic Republic of currently reports 0 cases against 0 cases in Sao Tome and Principe, a difference of 0 cases.

The two have swapped places 1 time across 44 shared years of data; in 1980 it was Iran, Islamic Republic of ahead.

Iran, Islamic Republic of ranks 26th and Sao Tome and Principe ranks 26th of 199 countries.

Iran, Islamic Republic of has averaged higher in every one of the 5 decades both report.

Head to head by decade

Decade	Iran, Islamic Republic of	Sao Tome and Principe	Difference	Ahead
1980s	87.1 cases	3 cases	84.1 cases	Iran, Islamic Republic of
1990s	44.7 cases	0 cases	44.7 cases	Iran, Islamic Republic of
2000s	0.3 cases	0 cases	0.3 cases	Iran, Islamic Republic of
2010s	0 cases	0 cases	0 cases	—
2020s	0 cases	0 cases	0 cases	—

Averages of every year both report within each decade.

Frequently asked questions

Which has higher reported cases of paralytic polio, Iran, Islamic Republic of or Sao Tome and Principe?: Iran, Islamic Republic of, at 0 cases against 0 cases in Sao Tome and Principe as of 2023.
What is the difference in reported cases of paralytic polio between Iran, Islamic Republic of and Sao Tome and Principe?: 0 cases, with Iran, Islamic Republic of ahead.
How many years of comparable data are there for Iran, Islamic Republic of and Sao Tome and Principe?: 44 years are reported by both, from 1980 to 2023.
How do Iran, Islamic Republic of and Sao Tome and Principe rank globally for reported cases of paralytic polio?: Iran, Islamic Republic of ranks 26th and Sao Tome and Principe ranks 26th of 199 countries.
Where does this data come from?: World Health Organization (2019); World Health Organization (2024) – processed by Our World in Data, published as Reported cases of paralytic polio. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Iran, Islamic Republic of vs Sao Tome and Principe: Reported cases of paralytic polio. Statizoid, drawing on World Health Organization (2019); World Health Organization (2024) – processed by Our World in Data. Retrieved 05 September 2026, from https://reference.statizoid.com/compare/the-number-of-reported-paralytic-polio-cases/iran-islamic-rep/sao-tome-and-principe/

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<a href="https://reference.statizoid.com/compare/the-number-of-reported-paralytic-polio-cases/iran-islamic-rep/sao-tome-and-principe/">Iran, Islamic Republic of vs Sao Tome and Principe: Reported cases of paralytic polio</a> — Statizoid

About this data

Indicator: Reported cases of paralytic polio
Unit: cases
Source: World Health Organization (2019); World Health Organization (2024) – processed by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 199 places, 7,608 data points, 1980–2023
Last refreshed: 28 August 2026

Sum of wild poliovirus cases and circulating vaccine derived poliovirus cases.